Eastern Equine Encephalitis (EEE) and West Nile Virus, both mosquito-borne diseases, have been recorded this summer at record breaking levels in Eastern Massachusetts. Treating your property will significantly reduce the mosquito and tick populations, reducing your risk to these infectious diseases. Treatments can be effective for 2-4 weeks from the application, depending on weather and other factors. Your arborist will design a treatment plan that is best for you and your family.